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ITU-T T.102 Syntax-based videotex end-to-end protocols for the circuit mode ISDN
ITU-T T.417 Information technology - Open Document Architecture (ODA) and interchange format: Raster graphics content architectures
ITU-T T.418 Information technology - Open Document Architecture (ODA) and interchange format: Geometric graphics content architecture
ITU-T U.15 Interworking rules for international signalling systems according to recommendations U.1, U.11 and U.12
ITU-T U.61 Detailed requirements to be met in interfacing the international telex network with maritime satellite systems
ITU-T U.203 Technical requirements to be met when providing real-time bothway communications between terminals of the international telex service and data terminal equipments on a PSPDN or via the PSTN
ITU-T M.1020 Characteristics of special quality international leased circuits with special bandwidth conditioning
ITU-T N.1 Definitions for application to international sound-programme and television-sound transmission
ITU-T Q.87.1 Stage 2 description for additional information transfer supplementary services : User-to-user signalling (UUS)